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Finding the Fourth Proportional to 23,918.29, 35,878.92 and 7,279.54

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Solution

The fourth proportional to 23,918.29, 35,878.92 and 7,279.54 is: 10,919.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,918.29 : 35,878.92 = 7,279.54 : x
  2. Step 2: Convert to fraction form
    23,918.29/35,878.92 = 7,279.54/x
  3. Step 3: Cross multiply
    23,918.29x = 35,878.92 × 7,279.54
  4. Step 4: Simplify right side
    23,918.29x = 261,182,033.30
  5. Step 5: Solve for x
    x = 261,182,033.30/23,918.29
  6. Step 6: Final answer
    x = 10,919.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.